Two new flavonol glycosides viz. 5-hydroxy-7,4'-dimethoxy-8-isoprenylflavone-3-O-β-D-xylopyranoside and 5,7,3',4'-tetra-hydroxy-6,8,2'-trimethoxyflavone-3-O-α-L-rhamnosyl-(1→2)-Oβ-D-glucopyranoside have been isolated from the seeds of Acacia nilotica (Linn). The structure of these glycosides have been established on the basis of chemical and spectral evidences.
structure, flavonoids, Acacia nilotica
Publication DOI: 10.1002/CHIN.200118198Journal NLM ID: 7613423Institutions: University of Allahabad, Allahabad, India
Methods: 13C NMR, 1H NMR, IR, TLC, acid hydrolysis, MS, UV, extraction, flash chromatography, PTLC